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High Speed and Robust Control System with Deadbeat Disturbance Observer for 3D Eye Imaging Equipment  

고종선 (단국대 전기공학과)
이태훈 (원광대 전자공학과)
김영일 (광전자(주) 생산기술부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.8, no.5, 2003 , pp. 418-426 More about this Journal
Abstract
To show a retina shape and thickness on the computer monitor, a laser has been used in Scanning Laser Ophthalmoscope(SLO) equipment using the traveling difference. This method requires exact synchronous control of laser traveling in optic system to show a clear 3-dimensional image of retina To obtain this image, this exact synchronism is very important for making the perfect plane scanning. In this study, a high speed and synchronous control of the galvanometer to make 3-dimensional retina image is presented. For the more, deadbeat load torque observer is added to the PI controller for compensation of the position error arisen in the high speed control. As a result, the proposed control system has a robust and precise response against the load torque variation appeared in high speed control. A stability and usefulness are verified by the computer simulation and the experiment.
Keywords
galvanometer; polygonmotor; retina; synchronous control;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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